I recently purchased this house with Napoleon 1402 insert. The inspector said I should add a hearth extension for safety, which I agree. Looking at continuing the concrete that is there with some sort of stone or paver. I plan on placing the extension 16" out from the face and 8" past the sides of the box. It will be placed over the wood flooring. I have read that I should place some fire rated materials beneath the stone to get the R value up to .80 . Also will be using a fire rated caulk for any joint. I have included a pic of the fireplace and specs from manual.
Can I just place this directly on the wood floor without permanently affixing it? Anything I forgot?
From the manual.
Can I just place this directly on the wood floor without permanently affixing it? Anything I forgot?
From the manual.